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Finding the Fourth Proportional to 35,419.30, 48,876.88 and 19,500.78

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Solution

The fourth proportional to 35,419.30, 48,876.88 and 19,500.78 is: 26,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,419.30 : 48,876.88 = 19,500.78 : x
  2. Step 2: Convert to fraction form
    35,419.30/48,876.88 = 19,500.78/x
  3. Step 3: Cross multiply
    35,419.30x = 48,876.88 × 19,500.78
  4. Step 4: Simplify right side
    35,419.30x = 953,137,070.09
  5. Step 5: Solve for x
    x = 953,137,070.09/35,419.30
  6. Step 6: Final answer
    x = 26,910.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.